<template>
  <div class="comment">
    <van-nav-bar title="商品评价页" left-arrow fixed @click-left="$router.back()" />

    <p class="header">
        <span :class="{activated:n===1}" @click="toggle(1,-1)">全部({{total.all}})</span>
        <span :class="{activated:n===2}" @click="toggle(2,10)">好评({{total.praise}})</span>
        <span :class="{activated:n===3}" @click="toggle(3,20)">中评({{total.review}})</span>
        <span :class="{activated:n===4}" @click="toggle(4,30)">差评({{total.negative}})</span>
      </p>

    <!-- 空页面 -->
    <div class="empty" v-if="!obj.data.length">
      <img src="@/assets/empty.png">
      <p>亲，暂无相关商品评价</p>
    </div>

    <div class="list" v-else>
          <div class="item" v-for="item in obj.data" :key="item.comment_id">
            <p>
              <img v-if="item.user.avatar_url" :src="item.user.avatar_url">
              <img v-else src="@/assets/default-avatar.png">
              <span class="nickname">{{item.user.nick_name}}</span>
              <span class="star">
                <span v-for="n in 5" :key="n">
                  <van-icon v-if="isFull(item.score,n)" name="star" size="16" class="full" />
                  <van-icon v-else name="star-o" size="16" class="blank" />
                </span>
              </span>
            </p>
            <p>{{item.content}}</p>
            <p>{{item.create_time}}</p>
          </div>
      </div>

  </div>
</template>

<script>

import { getGoodsCommentList, getGoodsCommentTotal } from '@/api/goods'
export default {
  data () {
    return {
      n: 1,
      obj: {},
      total: {}
    }
  },
  async created () {
    const { data: { list } } = await getGoodsCommentList(this.$route.query.goodsId, -1, 1)
    this.obj = list

    const { data: { total } } = await getGoodsCommentTotal(this.$route.query.goodsId)
    this.total = total
  },
  methods: {
    isFull (socre, index) {
      let max = 0
      if (socre === 30) {
        max = 1
      } else if (socre === 20) {
        max = 3
      } else {
        max = 5
      }

      return index <= max
    },
    async toggle (n, sortType) {
      this.n = n
      const { data: { list } } = await getGoodsCommentList(this.$route.query.goodsId, sortType, 1)
      this.obj = list
    }
  }
}
</script>

<style lang="less" scoped>

.comment {
 padding-top: 46px;
 padding-bottom: 50px;
}

.van-nav-bar {
    ::v-deep .van-nav-bar__title {
    font-weight: bold;
  }

    ::v-deep .van-icon-arrow-left {
        color: black;
    }
}

.full {
  color: rgb(244, 162, 19);
}

.blank {
  color: rgb(178, 178, 178)
}

.header {
    display: flex;
    justify-content: space-around;
    margin-bottom: 10px;
    background-color: white;

    span {
      padding: 5px;
      font-size: 15px;
      color: rgb(48, 49, 51);
    }

    .activated {
      font-weight: bold;
      color: rgb(250, 34, 9);
      border-bottom: 3px solid rgb(250, 34, 9);
    }
  }

.list {

    background-color: white;

    .item {
      width: 341px;
      padding: 7px 2px;
      margin: 0 auto;
      border-bottom: 0.5px solid #f5f5f5;

      p {
        width: 100%;
        line-height: 25px;
        color: #999;
      }

      p:first-child {
        display: flex;
        font-size: 12px;
        height: 25px;

        img {
          border-radius: 50%;
        }

        .nickname {
          padding: 0 5px;
        }

        .star {
            .van-icon {
              padding-right: 2px;
          }
        }

      }

      p:nth-child(2) {
        font-size: 13px;
        color: #333;
      }

      p:last-child {
        font-size: 12px;
        color: #999;
        margin-top: 5px;
      }

    }
  }

.empty {
  width: 325px;
  height: 197px;
  padding: 90px 25px;
  text-align: center;

  img {
    width: 140px;
    height: 92px;
  }

  p {
    font-size: 14px;
    color: grey;
    margin: 37px 0;
  }
}

</style>
